Saay What, Taylor Swift Wrote Calvin Harris’ Hit “This Is What You Came For”?

File this under—who knew Taylor Swift wrote Calvin Harris/Rihanna’s hit, “This is what you came for” under the pseudonym Nils Sjoberg, her rep confirmed to People. “Taylor Swift wrote “This Is What You Came For” under the pseudonym Nils Sjoberg.” According to TMZ, Taylor wrote the song—made a demo and sent it over to her beau at the time Calvin Harris. They allegedly decided to keep the collaboration hush hush and Swift was reportedly hurt was Harris said he had no plans to ever work with Taylor in an interview with Ryan Seacrest— he asked, “Will you do a collaboration with your girlfriend?” Calvin responded, “You know we haven’t even spoken about it. I can’t see it happening though.” But they already has collaborated.

Hey I wonder who else Taylor Swift has written for? On a side note Taylor could be a hater and block Calvin from performing it like he did to Rita Ora—-but she hasn’t.